ciphers.c

/* apps/ciphers.c *//* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */#include <stdio.h>#include <stdlib.h>#include <string.h>#ifdef OPENSSL_NO_STDIO#define APPS_WIN16#endif#include "apps.h"#include <openssl/err.h>#include <openssl/ssl.h>#undef PROG#define PROG ciphers_mainstaticconstchar *ciphers_usage[]={
"usage: ciphers args\n",
" -v - verbose mode, a textual listing of the ciphers in SSLeay\n",
" -ssl2 - SSL2 mode\n",
" -ssl3 - SSL3 mode\n",
" -tls1 - TLS1 mode\n",
NULL
};
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
int ret=1,i;
int verbose=0;
constchar **pp;
constchar *p;
int badops=0;
SSL_CTX *ctx=NULL;
SSL *ssl=NULL;
char *ciphers=NULL;
SSL_METHOD *meth=NULL;
STACK_OF(SSL_CIPHER) *sk;
char buf[512];
BIO *STDout=NULL;
#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) meth=SSLv23_server_method();
#elif !defined(OPENSSL_NO_SSL3) meth=SSLv3_server_method();
#elif !defined(OPENSSL_NO_SSL2) meth=SSLv2_server_method();
#endif
apps_startup();
if (bio_err == NULL)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS {
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
STDout = BIO_push(tmpbio, STDout);
}
#endif
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-v") == 0)
verbose=1;
#ifndef OPENSSL_NO_SSL2elseif (strcmp(*argv,"-ssl2") == 0)
meth=SSLv2_client_method();
#endif#ifndef OPENSSL_NO_SSL3elseif (strcmp(*argv,"-ssl3") == 0)
meth=SSLv3_client_method();
#endif#ifndef OPENSSL_NO_TLS1elseif (strcmp(*argv,"-tls1") == 0)
meth=TLSv1_client_method();
#endifelseif ((strncmp(*argv,"-h",2) == 0) ||
(strcmp(*argv,"-?") == 0))
{
badops=1;
break;
}
else
{
ciphers= *argv;
}
argc--;
argv++;
}
if (badops)
{
for (pp=ciphers_usage; (*pp != NULL); pp++)
BIO_printf(bio_err,"%s",*pp);
goto end;
}
OpenSSL_add_ssl_algorithms();
ctx=SSL_CTX_new(meth);
if (ctx == NULL) goto err;
if (ciphers != NULL) {
if(!SSL_CTX_set_cipher_list(ctx,ciphers)) {
BIO_printf(bio_err, "Error in cipher list\n");
goto err;
}
}
ssl=SSL_new(ctx);
if (ssl == NULL) goto err;
if (!verbose)
{
for (i=0; ; i++)
{
p=SSL_get_cipher_list(ssl,i);
if (p == NULL) break;
if (i != 0) BIO_printf(STDout,":");
BIO_printf(STDout,"%s",p);
}
BIO_printf(STDout,"\n");
}
else
{
sk=SSL_get_ciphers(ssl);
for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
{
BIO_puts(STDout,SSL_CIPHER_description(
sk_SSL_CIPHER_value(sk,i),
buf,sizeof buf));
}
}
ret=0;
if (0)
{
err:
SSL_load_error_strings();
ERR_print_errors(bio_err);
}
end:
if (ctx != NULL) SSL_CTX_free(ctx);
if (ssl != NULL) SSL_free(ssl);
if (STDout != NULL) BIO_free_all(STDout);
apps_shutdown();
OPENSSL_EXIT(ret);
}